Knock-Down Rebuild Costs NSW 2026 - Get Free Quotes

Knock-Down Rebuild Costs in NSW

A knock-down rebuild means demolishing your old house and building a new one on the same block. In NSW a single-storey project home is commonly $350,000 to $550,000, a double-storey home $500,000 to $900,000, and a custom home more again, with demolition of $20,000 to $40,000 and site costs on top. Because the cost depends so much on the home size and the finish level, it varies more with the project than with any single figure. A modest project home is one thing while a large custom home is another entirely.

What moves the price most is the home size and the number of storeys. The finish level counts. The demolition itself adds to the total cost. The site conditions matter. Telling the builder the size of home you want, the storeys, and the state of your block is what lets them quote the job.

The work is done by a licensed builder, and it is one of the bigger projects a homeowner can take on, sitting alongside a full new home construction. They manage the demolition, the approvals, the site works, and the build from start to finish, which begins with demolition services to clear the old house. Getting a new home on your existing block is the real value. The idea looks simple, but the demolition, the approvals, the site works, and the build are a major project. Getting it right means a brand-new home in the location you already love.

A knock-down rebuild is chosen to keep your land and start fresh. Because you keep your block and its location while replacing a tired house with a new one, you avoid buying and selling and the stamp duty that comes with moving, which is why it is chosen, covered below. The kept location, the fresh new home, and the avoided moving costs are the main draws. It keeps your land. It starts fresh.

The most important thing to understand is that the home size and the finish drive most of the cost. Because a modest project home is worlds apart from a large custom build, the choice shapes the price, which is covered below in the builder section. This is the home point. The chosen home design varies quite a lot. It shapes the cost.

The number of storeys sits near the heart of the cost. Because a double-storey home adds structure, stairs, and more roof and services, the storeys shape much of the total, related to new home construction. This is the storey point. The number of storeys really sets the price. The price follows.

The simplest way to think about the cost is the demolition, the build, and the site. The demolition means clearing the old house. The build covers the new home and its finish. The site covers the slope, the services, and the approvals. Combine the demolition, the build, and the site and you have a realistic figure.

A clear picture of your block and the home you want is the sensible basis for a quote. The builder needs to know the size of home, the storeys, and the state of the block to judge the job, which this work needs for an accurate quote, related to building inspection. In practice, a quote with no site detail is a rough guess. Vague briefs produce vague pricing. Noting your block size and the home you have in mind before you ask helps.

It is worth walking your block with the builder before any design work begins. Going over the slope, the trees, the access, the neighbours, and where the services run lets them design a home that suits the site and price it accurately, related to builder. A site walk catches the tricky bits early. The design then suits the block. The quote is far firmer. Walking your block with the builder before any design work begins, since every block is different, sets the whole project up well.

What It Covers

A knock-down rebuild covers the demolition, the approvals, the build, and the finish. A licensed builder clears the old house, gains the approvals, does the site works, and builds the new home. It sits alongside a full new home construction and starts with demolition services. A finished new home on your block is what it delivers. The aim is a home built for how you live now.

The old house is demolished. The builder clears the existing house and removes the debris, related to demolition services. This is the demolition. The old house is cleared away completely. The site is prepared.

The approvals are gained. The design is drawn and the approval lodged before any build starts, related to building inspection. This is the approval. The plans are formally lodged for assessment. Then granted.

The site works are done. The slab or footings go in and the services are connected, related to new home plumbing. This is the site work. The cleared site is prepared for building. Then built.

The new home is built and completed. The builder frames, roofs, fits out, and finishes the new home, related to builder. This is the build. The new home is framed up first. Then finished.

It is worth having the block and old house checked before you commit to a rebuild. A proper inspection flags asbestos, poor soil, or services that affect the plan and the price, related to building inspection. It is far better to know these things up front. A clear picture makes for an accurate quote.

It is worth knowing a knock-down rebuild keeps the one thing you cannot easily change, your location. The suburb, the street, the schools, and the neighbours all stay the same while the house itself is replaced, related to builder. Your location stays exactly the same throughout. Only the house changes. The address you love remains. Knowing a knock-down rebuild keeps the one thing you cannot easily change, your location, since land and position are fixed, shows its real appeal.

It is worth knowing a new home is built to current standards for energy, safety, and comfort. Modern insulation, glazing, wiring, and design mean a rebuilt home is cheaper to run and more comfortable than the old house it replaces, related to new home construction. A new home meets the current codes. It runs more efficiently. It is far more comfortable. Knowing a new home is built to current standards for energy, safety, and comfort, since the old house rarely was, adds real long-term value.

It is worth remembering the finished home should be designed around how you actually live. A rebuild is a rare chance to get the orientation, the flow, the storage, and the room sizes right for your family rather than inheriting someone else's layout, related to new home construction. The whole layout is designed around you. The orientation suits the block. Nothing is inherited. Remembering the finished home should be designed around how you actually live, since you get to start fresh, is the real reward of a rebuild.

It is worth picturing the money you save by not buying and selling a home. There are no agent fees, no stamp duty on a purchase, and no moving costs, which offsets a real part of the build against the cost of relocating, related to home extensions. Agent fees and stamp duty are avoided. Moving costs disappear too. That offsets the build. Picturing the money you save by not buying and selling a home, since those costs are substantial, helps the sums stack up.

It is worth understanding that a rebuild lets you future-proof the home for the years ahead. Designing in things like a study, an extra bathroom, wider doorways, or single-level living now saves costly changes down the track, related to new home construction. A rebuild lets you plan well ahead. Future needs are designed in. It saves changing later. Understanding that a rebuild lets you future-proof the home for the years ahead, since you are starting fresh, adds real long-term value.

It is worth stepping back to see a knock-down rebuild as the way to get a new home without leaving home. You end up with a brand-new house built for how you live, on the block and in the street you already chose, related to new home construction. You get a completely new home built. You keep your street and block. Both matter a great deal. Stepping back to see a knock-down rebuild as the way to get a new home without leaving home, since it keeps what you love, sums up its appeal. Where the result falls short, you can check a trader's standing through NSW Fair Trading.

What a Knock-Down Rebuild Is

A knock-down rebuild replaces the house, not the land. The old house comes down and a new one goes up on the same block, related to new home construction. This is the idea. It uses the very same block of land. New home.

It keeps your location and your land. You stay in the suburb, street, and block you already own, related to builder. This is the location. Your land and its location are kept. You stay put.

It avoids buying and selling. There is no house to buy, no stamp duty on a purchase, and no sale, related to home extensions. This is the saving. There is no other house to purchase. No sale.

It gives a brand-new home to modern standards. The new home is built to current codes for energy, safety, and comfort, related to new home construction. This is the home. The whole home is completely brand new. Modern standards.

It suits a tired house on good land. Where the block is great but the house is past it, a rebuild makes sense, related to builder. This is the fit. It suits good land with an old house. Old house.

It is worth choosing between a project home and a custom design early, as it shapes the whole budget. A project home from a builder's range is quicker and cheaper, while a custom design gives full freedom at a higher cost, related to duplex builders. A project home suits a tighter budget. A custom design gives full freedom. Each shapes the price. Settling on a project home or a custom design at the outset, since the choice steers the whole budget, is well worth doing before the drawings begin.

It is worth being clear that a rebuild avoids the hidden surprises a big renovation can bring. Starting fresh on a cleared block means no old footings, wiring, or asbestos turning up mid-project to blow the budget, related to renovation builders. A fresh start avoids the old surprises. Nothing hidden turns up later. The budget holds far better. Being clear that a rebuild avoids the hidden surprises a big renovation can bring, since a clean slate has fewer unknowns, helps you weigh the two.

It is worth asking whether a pergola or outdoor living area suits your new home. Designing a covered outdoor area into the plan gives a natural flow from inside to out that is hard to add neatly later, related to pergola builders. A pergola extends the living space nicely. It flows from the home. It is best designed in. Asking whether a pergola or outdoor living area suits your new home, since it adds real everyday space, is worth talking through early.

It is worth weighing a rebuild against simply buying another house and moving. A rebuild avoids agent fees, stamp duty on a purchase, and leaving a suburb you like, though it does mean a build period and temporary accommodation, related to home extensions. Moving carries agent fees and stamp duty. A rebuild avoids most of those. Each has its trade-offs. Weighing a rebuild against simply buying another house and moving, since the sums are closer than they first look, is worth doing carefully.

Rebuild vs Renovating

Renovating keeps and reworks the existing house. It changes parts of the home while keeping the structure, related to renovation builders. This is renovating. It reworks the existing house you have. It keeps the shell.

A rebuild starts from a clean slate. The old house goes entirely and a new one is built to suit, related to new home construction. This is rebuilding. It starts fresh from a clean slate. A new home.

Renovating can hit hidden problems. Old wiring, footings, or asbestos can turn up once walls are opened, related to building inspection. This is the risk. Hidden problems can turn up along the way. Rising costs.

An extension adds to what is there. Where the house is sound, adding space can be the better choice, related to home extensions. This is the extension. It simply adds more space onto the house. It keeps the house.

A builder can advise which suits your house. The right path depends on the house, the block, and your plans, related to builder. This is the advice. The right path depends on the house. A builder confirms it.

What Is Involved

The block and old house are assessed. The builder checks the block, the house, and access before planning, related to building inspection. This is the assessment. The block and house are checked over. Then planned.

The new home is designed and approved. A design is drawn to suit the block and the approval gained, related to new home construction. This is the design. The home is drawn to suit the block. Then approved.

The old house is demolished and cleared. The existing house comes down and the debris is removed, related to demolition services. This is the demolition. The old house is fully cleared off. The site is level.

The slab and services go in. The footings or slab are laid and power, water, and sewer connected, related to new home plumbing. This is the base. The slab or the footings are poured first. Then connected.

The new home is built, fitted out, and finished. The frame, roof, fit-out, and finishes complete the new home, related to builder. This is the build. The new home is framed and roofed. Then finished.

It is worth planning any retaining walls and site works with the builder before the build. A sloping or filled block often needs retaining walls and drainage that are best designed alongside the home, related to retaining wall builders. Good planning keeps the site costs under control. It avoids expensive surprises later on.

It is worth deciding early whether a shed, garage, or carport goes in with the rebuild. Building a garage or shed at the same time as the home is cheaper and tidier than adding one once the house is finished, related to shed and garage builders. A garage is cheaper built with the home. It suits the design better. Access is easier during the build. Settling whether a shed, garage, or carport is built alongside the home, since doing it together costs less and looks tidier, is well worth resolving in the plan.

It is worth being realistic that you cannot live on site during a knock-down rebuild. With the whole house gone, you will need to rent or stay elsewhere for the demolition and the six to twelve month build, related to new home construction. The old house is fully demolished first. You stay somewhere else meanwhile. The new home then rises. Being realistic that you cannot live on site during a knock-down rebuild, since the house is entirely cleared, is worth budgeting for from the start.

It is worth picturing the rebuild as a sequence of clear stages rather than one big job. Design and approval come first, then demolition, then the slab and services, then the frame, the fit-out, and the finishes, related to new home construction. Design and approval start off the project. Demolition and the slab follow. The build then completes it. Picturing the rebuild as a sequence of clear stages rather than one big job, since each stage has its own timing, makes the whole project easier to follow.

It is worth confirming who disconnects the power, water, gas, and sewer before demolition. The services must be safely disconnected before the old house comes down, and reconnected to the new home, which the builder coordinates, related to new home plumbing. The services are disconnected before demolition. They are reconnected to the new home. The builder coordinates it. Confirming who disconnects the power, water, gas, and sewer before demolition, since it must happen safely and in order, keeps the site works smooth.

It is worth treating the design stage as the part that shapes the whole result. Getting the orientation, the flow, the room sizes, and the storage right at design time is what makes the finished home a pleasure to live in, related to new home construction. Good design shapes the whole home well. It gets the flow right. It is worth the time. Treating the design stage as the part that shapes the whole result, since it is hard to change later, is time very well spent.

The Process

The block and budget are assessed. The builder checks the block and talks through the home and budget, related to builder. This is the assessment. The block, home, and budget are talked through. Then designed.

The home is designed and quoted. A design suited to the block is drawn and a price given, related to new home construction. This is the design. The home is drawn up in detail. Then quoted.

The approval is lodged and granted. The plans go through a development application or complying development, related to building inspection. This is the approval. The plans are lodged with the certifier. Then granted.

The old house is demolished. The existing house is cleared and the site made ready, related to demolition services. This is the demolition. The existing house is cleared right away. Then prepared.

The new home is built and handed over. The builder constructs the home, finishes it, and hands over the keys, related to new home plumbing. This is the handover. The whole new home is then built. You move in.

It is worth understanding that complying development can approve a standard rebuild far faster. Where the design meets the set rules on height, setbacks, and floor space, a certifier can approve it in weeks rather than months, related to new home construction. A standard design meets the set rules. A certifier approves it quickly. It saves real time. Understanding that complying development can approve a standard rebuild far faster, since it skips a full council assessment, is worth knowing when you plan.

It is worth being aware a non-standard design or block usually needs a full development application. Where the plan does not fit the complying rules, the council assesses it against the local controls, which takes longer, related to home extensions. A non-standard plan goes to the council. The assessment takes longer to complete. It needs more patience. Being aware a non-standard design or block usually needs a full development application, since council assessment adds time, helps you plan the timing.

It is worth knowing that demolition waste must be sorted and disposed of correctly. A responsible builder recycles what can be recycled and disposes of the rest, including any asbestos, to the proper standards, related to demolition services. Demolition waste is carefully sorted for recycling. The rest is disposed of properly. Asbestos is handled safely. Knowing that demolition waste must be sorted and disposed of correctly, since it is a regulated part of the job, is worth confirming with your builder.

It is worth allowing time for the approval before you plan the build to start. Even the faster complying development path takes some weeks, and a full application longer, so building this into the program avoids frustration, related to new home construction. Approval always takes a little time here. Complying development is quicker. A full application takes longer. Allowing time for the approval before you plan the build to start, since nothing can begin without it, keeps the program realistic. SafeWork NSW covers what is expected of contractors and occupiers alike.

The Approval Process

A rebuild needs approval before any build starts. The plans must be approved by the council or a certifier first, related to new home construction. This is the approval. The approval always comes first of all. It is required.

Complying development is the faster path. Where the design meets the set rules, a certifier can approve it quickly, related to builder. This is complying development. This path is a good deal faster. It suits standard homes.

A development application suits non-standard plans. Where a design does not meet the rules, it goes to council for assessment, related to home extensions. This is the application. The plan goes to the local council. It takes longer.

Demolition also needs approval. Clearing the old house is approved and done safely, related to demolition services. This is the demolition approval. The demolition approval is then duly granted. Then cleared.

A builder or certifier guides the approvals. They know which path suits and how to lodge it, related to building inspection. This is the guidance. The whole approval process is expertly guided. It is lodged.

How Long It Takes

Design and approvals often take a few months. Drawing the plans and gaining approval is the first stretch, related to new home construction. This is the start. It usually takes a good few months. Design and approval.

Complying development speeds the approval. A standard design that meets the rules is approved faster, related to builder. This is the fast path. It takes weeks rather than long months. For standard homes.

Demolition is quick once approved. Clearing the old house takes only a week or two, related to demolition services. This is the demolition. It takes only a week or two. Quickly cleared.

The build itself takes several months. A new home is commonly a six to twelve month build, related to new home construction. This is the build. It runs on over several long months. A major project.

A builder gives a program up front. A good builder sets out the stages and timing, related to builder. This is the program. A clear program is given up front. Then followed.

It is worth thinking about a granny flat as part of a rebuild for extra space or income. Some owners add a second dwelling on the block during a rebuild for family or rental, which a builder can plan in from the start, related to granny flat construction. A builder can advise if the block suits one. It is worth raising early in the design.

It is worth understanding why the home size and the storeys lead the price, because they set the whole project. A single-storey project home needs less structure and roof, while a large double-storey custom home needs far more of everything, related to new home construction. A project home is the cheapest option. A custom home costs far more. The size sets the base. Understanding why the home size and the storeys lead the price, from a project home to a custom build, helps you frame a realistic budget.

It is worth considering a pool as part of the design if you have always wanted one. A rebuild lets a builder position a pool and its plant to suit the new home and the block from the outset, related to swimming pool construction. A pool is best planned with the home. The position suits the block. Access is simpler during the build. Considering a pool as part of the design if you have always wanted one, since it fits far better planned in, is worth raising with the builder.

It is worth thinking about the outdoor spaces you want as part of the rebuild plan. A new home is the ideal time to design in a deck, a pool, or a pergola so they suit the house rather than being added awkwardly later, related to deck building and construction. Outdoor spaces are best planned in early. They then suit the new home. It saves reworking later. Thinking about the outdoor spaces you want as part of the rebuild plan, since they work best designed in, gives a far better result.

It is worth budgeting for accommodation across the length of the build. Rent or other accommodation for the demolition and build period is a real cost that is easy to overlook when comparing a rebuild with renovating, related to builder. Accommodation runs the length of the build. It is a genuine cost. The builder's program helps you plan. Budgeting for accommodation across the length of the build, since it adds up over many months, keeps the overall figure honest.

It is worth understanding that site costs are what make two identical homes cost different amounts. Demolition, tree removal, cutting a sloping block, rock, retaining, and connecting services all depend on your particular block, related to retaining wall builders. A flat, clear block keeps site costs low. A steep or rocky one adds a lot. The block drives it. Understanding that site costs are what make two identical homes cost different amounts, since every block is different, helps you read a quote properly.

It is worth having the block assessed for asbestos before the demolition is priced. Older houses can contain asbestos in sheeting, eaves, and flooring, which must be removed and disposed of safely and adds to the demolition cost, related to demolition services. Older homes may well contain some asbestos. It must be removed safely. It adds to the cost. Having the block assessed for asbestos before the demolition is priced, since it affects both safety and price, is a sensible early step.

It is worth being clear with the builder about your budget and your must-haves early. Knowing what matters most to you, whether it is a big kitchen, extra bedrooms, or a high finish, helps them design to your budget rather than over it, related to builder. Say what matters most to you early. The builder designs to suit. The budget stays realistic. Being clear with the builder about your budget and your must-haves early, since it shapes the whole design, gives you the right home.

What Affects the Cost

The home size and storeys are the biggest cost factor. A single-storey project home is far cheaper than a large custom build, so the size and the storeys drive most of what you pay. In practice, the size drives most of what you pay. A project home is cheaper. A custom home costs more. The rest of the budget flows from it.

The finish level affects the cost. Because premium fittings, stone, and joinery cost far more than standard inclusions, the finish shapes the total, related to new home construction. Standard inclusions are cheaper. A high finish level costs a lot more. The finish affects the price.

The demolition affects the cost. Because clearing the old house, and any asbestos, adds a set amount, the demolition shapes the total, related to demolition services. A simple demolition is cheaper. Removing asbestos costs a fair bit more too. The demolition affects the price.

The site conditions affect the cost. Because a sloping block, rock, or trees add site works, the block shapes the total, related to retaining wall builders. A flat, clear block is cheaper. A tricky, steep site costs a lot more. The site affects the price.

The approval path affects the cost. Because a full development application costs more than complying development, the approval shapes the total, related to building inspection. Complying development is cheaper. A full council application costs a bit more. The approval affects the price.

Knock-Down Rebuild Costs Across Sydney

Across Sydney, the cost of a knock-down rebuild is set far more by the home size, the finish, and the site than by the postcode, though demolition and site access can add a little in tight suburbs. A large custom home on a difficult block is where the cost climbs, while a single-storey project home stays lower. A clear picture of your block and the home you want is the way to get an accurate Sydney estimate.

The variation across Sydney reflects the home and the site more than the location. A large custom home and a difficult block push the cost up, while a project home on a flat block sits lower. A single-storey home sits at the lower end and a large custom build at the upper. Clear information keeps a country estimate tight.

Knock-Down Rebuild Costs in Regional NSW

For regional properties, the practical points are the builder's reach, the home size, and the site. A local builder handles the work, while travel and material delivery can add a little in remote areas, and larger blocks are common. A clear picture lets a regional builder give an accurate estimate.

In regional NSW, the builder's reach and material delivery are the main differences from the city. A longer trip and delivery can add a little, and larger blocks may need more site works. The build itself is much the same. Reach and delivery are common considerations. Sort the travel component before booking.

It is worth asking the builder for a realistic site-cost allowance rather than a token figure. A proper allowance based on a real look at the block avoids the nasty variations that come when a low figure is used to win the job, related to building inspection. A real allowance reflects the actual block. A token figure blows out later. It pays to be realistic. Asking the builder for a realistic site-cost allowance rather than a token figure, since it protects your budget, is one of the smartest questions to ask.

It is worth confirming the builder holds home building compensation cover where it is required. For work over a set value this cover protects you if the builder cannot finish or fix defects, so it is worth confirming it is in place, related to new home construction. The cover protects you if things go wrong. It applies over a set value. A good builder arranges it. Confirming the builder holds home building compensation cover where it is required, since it is your safety net, is an important check.

It is worth choosing a builder with a solid track record on rebuilds, not just new builds. A builder used to knock-down rebuilds understands the demolition, the site works, and the approvals as one project rather than separate jobs, related to builder. A rebuild is more than a new build. Experience with the whole process helps. It runs far more smoothly. Choosing a builder with a solid track record on rebuilds, not just new builds, since the demolition and site works add complexity, is well worth the effort.

What to Look Out For

The first thing to watch is that the builder is licensed and the contract is written and clear. Because residential building of this size needs a licensed builder and a proper home building contract, they matter most, so check them. This is the key point. Always check the builder holds a current licence. Confirm the written contract.

Check what the quote includes and excludes. Because site costs and allowances vary, a fixed, clear inclusions list matters, related to new home construction. This is the inclusions point. The inclusions are all fixed and clear. Not vague.

Confirm the demolition and any asbestos are covered. Because clearing the old house safely is part of the job, it should be in the quote, related to demolition services. This is the demolition point. The demolition is included right in it. Not extra later.

Ask how site costs and variations are handled. Because a sloping block or rock can add cost, the way variations work should be clear, related to retaining wall builders. This is the site point. The way the variations work is clear. Not a surprise.

Be wary of a quote far below the others, as it may carry thin allowances or leave out site costs. A price well under the rest can hide low provisional sums, an unlicensed builder, or excluded demolition, none of which is ideal, so the cheapest is sometimes a false economy. Judge it on the licence, the inclusions, and the contract together. A thin quote blows out later. The licence and the inclusions matter more than the headline price.

It is worth reading the home building contract carefully before you sign anything. The contract sets out the price, the inclusions, the site costs, the stages, and the terms, so it is worth understanding every part of it, related to builder. The contract sets out the whole deal. The inclusions should be clear. The price should be firm. Reading the home building contract carefully before you sign anything, since it governs the whole build, is time very well spent.

It is worth asking how variations are priced and approved once the build is under way. Knowing that any change is quoted and signed off before work proceeds keeps control of the budget through the build, related to builder. Variations are quoted before any further work. You sign them off first. The budget stays in control. Asking how variations are priced and approved once the build is under way, since changes are where budgets can drift, keeps the project on track.

It is worth comparing a couple of builders on how they handle the whole rebuild. Seeing how each sets out the demolition, the site costs, the design, and the contract tells you as much as the headline price does, related to builder. Compare how each handles the whole project. The detail tells you a lot. Judge them on the whole. Comparing a couple of builders on how they handle the whole rebuild, since the approach matters as much as the price, gives real peace of mind.

It is worth asking the builder to explain the payment stages across the build. A knock-down rebuild is paid in stages tied to progress, so understanding when each payment falls helps you plan the finances through the project, related to builder. Payments are tied to the build progress. Each stage has its point. It helps you plan ahead. Asking the builder to explain the payment stages across the build, since it spreads the cost over months, keeps your finances on track. Disputes over residential building work are heard by NCAT.

What to Look for in a Quote in NSW

A good knock-down rebuild quote is clear about the demolition, the build, the finish, and the site. It should set out the home design, the inclusions, the demolition, the site costs, the approvals, and a fixed price under a proper contract, so you can compare quotes and avoid surprises. You can see precisely what the money buys. A vague price with thin allowances or excluded site costs is a red flag. The demolition, the build, and the site are what to confirm.

Confirm the builder is licensed and insured for the work. Because a build of this size is licensed, a quote should show it, which you can check, related to builder. Asking is reasonable. A good builder will readily confirm it. They do it properly.

Compare on the inclusions, the site costs, and the licence, not just the price. A clear, well-specified build with fixed site costs by a licensed builder is worth more than the cheapest that hides them, much as with any new home construction or home extensions work. Weigh the inclusions, the site costs, and the licence. Describing the job once on The Quote Yard brings responses from several builders, so the final choice can rest on fit and trust as much as price. Looking at the inclusions and the site costs, not just the price, is what gives you a build that runs to budget.

Ask whether a project home or a custom build suits your block and budget. Because each suits a different budget and site, it is worth talking through, related to duplex builders. This shapes the budget. The answer usually improves the scope. Resolve it at the quoting stage. The ACCC explains what recourse you have on a job like this.